Forum Discussion
MURPHY55347
Sep 11, 2019Explorer
We have a Vista LX 27N. Winnebago assures me there is no pipe on the vent that extends into the tank. If you look at their plumbing diagrams you will see that on the overfill pipe the use 1/2” tubing. Then to prevent siphoning they slip a larger diameter pipe over this and attach it with a screw. The theory is that the space created between these 2 different diameter pipes is supposed to let air in to prevent siphoning. Seems to be hit and miss wether it works or not.
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